I don't really know either. Deep China to me means anything other than the coastal Beijing, Shanghai, Shenzhen megacites full of foreigners. Anything interior with less than 20M people, but still 5-15M like Hefei, Wuhan, Xi'an, Chengdu, Chongqing. Tiny cities like Ordos 2M? or even coastal cities like Fuzhou 8M? are even more challenging.
"Darkest Peru" is where Paddington Bear was born. I meant China at its most remote free of foreign, or western visitors, your pick. So as to be the most free of web traffic western expectation and consequently consideration.
Which is very interesting for China because we can marvel at the still large size and number of cities which see few foreign visitors. Leading to "tiny cities like Ordos 2M". Or what? dozens like that? Hundreds? And considering the size of the China "full of foreigners", that's an equivalently "authentic" China.
